Smart Locks: Buyer’s Hub
Smart locks replace or retrofit onto your existing deadbolt to give you keyless entry, remote access, and door activity logs from your phone. Whether you want to let in a dog walker without cutting a key, or lock the front door from the office because you forgot, a smart lock solves problems a traditional key cannot.
Table of Contents
What This Section Covers
- Best smart locks for apartments — retrofit models that sit over your existing lock without replacing the cylinder
- Best smart locks for front doors — full deadbolt replacements with the strongest security ratings
- Best keypad smart locks — PIN-entry locks for households that prefer not to rely on phones
- Best smart locks with built-in Wi-Fi — no extra hub required for remote access anywhere
- Smart lock compatibility — Alexa, Google Home, Apple HomeKit, and SmartThings integration guides
Key Buying Decisions
Retrofit vs full replacement
Retrofit smart locks (such as the August Smart Lock) clamp over the inside of your existing thumb-turn. You keep your original key cylinder and landlord need not know. Full replacement locks swap the entire deadbolt and offer more finish options and features, but require more installation time.
Connectivity: Bluetooth, Z-Wave, or Wi-Fi
Bluetooth-only locks work only when your phone is nearby. Wi-Fi locks give you true remote access from anywhere. Z-Wave and Zigbee locks need a compatible hub but are very reliable once configured. We specify connectivity type on every recommendation.
Battery life
Most smart locks run on AA batteries and last 6–12 months. Always look for low-battery notifications and an emergency power option — a lock with a dead battery is a serious inconvenience.
Who This Is For
- Renters who cannot replace the lock cylinder but want smart access features
- Homeowners who want to eliminate physical keys entirely
- Short-term rental hosts managing multiple guest access codes
- Families with children who frequently lose keys
Popular Guides in This Section
Frequently Asked Questions
Are smart locks as secure as traditional locks?
Yes, when chosen carefully. Look for ANSI Grade 1 and AES-128 encrypted wireless communication. The physical lock cylinder quality matters as much as the electronics.
What if the battery dies while I am outside?
Most smart locks have a physical key override. Some also have a 9V battery terminal on the outside of the lock for emergency power. Always keep a physical backup key with a trusted person.
Can smart locks work without Wi-Fi?
Yes. Bluetooth-based locks work entirely offline using your phone. Keypad models work without any wireless connection at all. Only remote access features require an internet connection.